Base Mines - Lower in the natural scale of mines and minerals; as opposed to "royal" mines and minerals, those not reserved to the Crown but capable of private ownership and transfer.

Benefiting Party - A party who receives a benefit as a result of a postponement.

Builder’s Lien - An interest registered in the system, made by a contractor or sub contractor or wage earner, who has not been paid for goods or services provided for improvements on the lands against which the lien is being registered.